employee_salaries = {
    "Alice": 5000,
    "Bob": 7000,
    "Charlie": 6000,
    "Diana": 8000
}

print(employee_salaries.keys())
print(employee_salaries.values())

employee_salaries['王佳贺']=100000000
print(employee_salaries)


del employee_salaries['Bob']
print(employee_salaries)

print(employee_salaries['Diana'])